Fuel Cells at Temperatures above 100°Ｃ
报告摘要：The common proton exchange membrane fuel cell (PEMFC) usually operates with Nafion or a similarmaterial as membrane which limits the maximum operation temperature to approx. 80C. This has certainlya number of advantages but also considerable drawbacks. This situation will be reviewed, and it will bepointed out why higher temperature have advantages. The decisive point in realising such a fuel cell attemperatures above that of a PEMFC is the membrane and at which temperature it can operate efficientlyand stable. One of them is doped polybenzimidazole (PBI) which can go up to 200C, but other hightemperature polymers exist as well. In addition to polymers, also inorganic materials can be suitable electrolytes.Excluding here ionic conductors at high temperatures which are usually oxides and are being used in theSolid Oxide Fuel Cell (SOFC), other materials with high conductivities in the temperature range 100 - 250'C e.g.phosphates are quite promising. The implications for raised operating temperatures up to 250'C for themembrane material, the electrodes with the catalysts, the materials for stack construction and suitable fuels will be discussed. 报告人简介：Ulrich Stimming is currently Professor of Physical Chemistry at Newcastle University. He was Head ofthe School of Chemistry at Newcastle University. He was CEO and Scientific Advisor and PrincipalInvestigator of TUM Create in Singapore. He was a Chair of Technical Physics and Professor of Chemistryat Technical University Munich (TUM). He won several international awards and had more than 300 publications in scientific journals andbooks (h index 68), 12 patents.